The market demand for medium molecular weight polyisobutylene (PIB) is vast and my country’s supply capacity needs to be improved.

polyisobutylene (pib) is a polymer produced by cationic polymerization of isobutylene and is a typical saturated linear polymer. the molecular weight of polyisobutylene can range from hundreds to millions. those with a relative molecular mass of 350-10,000 are called low molecular weight polyisobutylene, those with a relative molecular mass of 10,000-100,000 are called medium molecular…